Using Object Drop to Show Layers

Hello, 

I am working on a project where I am attempting the following: 

• Drop Object 1 onto Target 1 to show Layer 1 and play audio clip 1. 
• Drop Object 2 onto Target 2 to show Layer 2, play audio clip 2, and hide Layer 1.

Problem: 

Layer 1 does not show when Object 1 is dropped onto Target 1, but Layer 2 does show when Object 2 is dropped onto Target 2. I'm not sure why Layer 1 does not show when the triggers are the same. 

Note: I have not yet  added the sample audio clips to trigger because I want to get the Show Layers triggers working correctly first. Could someone please assist? 

Thanks in advance!